LaTexによる数式の記述

数式を体裁よくPC画面上に表示させるためのLaTeXの記述方法を、
一般的な数学記号についてまとめました。

目次

  等号・不等号・計算記号など

  線形代数

  関係性

  幾何学

  その他演算式・微分・積分など

  修飾文字

  ギリシャ文字

 

等号・不等号・計算記号など

表示される数式Latex
\(\scriptsize +\)+
\(\scriptsize -\)-
\(\scriptsize \times\)\times
\(\scriptsize \div\)\div
\(\scriptsize =\)=
\(\scriptsize \neq\)\neq
\(\scriptsize \approx\)\approx
\(\scriptsize \simeq \)\simeq
\(\scriptsize >\)>
\(\scriptsize <\)<
\(\scriptsize \geq\)\geq
\(\scriptsize \leq\)\leq
\(\scriptsize \gg \)\gg
\(\scriptsize \ll \)\ll
\(\scriptsize \propto \)\propto

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線形代数

表示される数式Latex
\(\scriptsize \vec{a} \)\vec{a}
\(\scriptsize \overrightarrow{AB} \)\overrightarrow{AB}
\(\scriptsize \vec{a} \cdot \vec{b} \)\vec{a} \cdot \vec{b}
\(\scriptsize { {n} \choose {k} } \){ {n} \choose {k} }
\(\scriptsize \left( A \right) \)\left( A \right)
\(\scriptsize \left [ X \right] \)\left [ X \right]
\(\scriptsize \left (\begin{matrix} a & b \\ c & d \end{matrix} \right ) \)\left (\begin{matrix} a & b \\ c & d \end{matrix} \right )
\(\scriptsize \left (\begin{matrix} a & b & c \\ d & e & f \\ g & h & i \end{matrix} \right ) \)\left (\begin{matrix} a & b & c \\ d & e & f \\ g & h & i \end{matrix} \right )
\(\scriptsize f \circ g \)f \circ g
\(\scriptsize X \stackrel{f}{\to} Y \)X \stackrel{f}{\to} Y

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関係性

表示される数式Latex
\(\scriptsize \in \)\in
\(\scriptsize \notin \)\notin
\(\scriptsize \ni \)\ni
\(\scriptsize \forall \)\forall
\(\scriptsize \exists \)\exists
\(\scriptsize \cup \)\cup
\(\scriptsize \subset \)\subset
\(\scriptsize \supset \)\supset
\(\scriptsize \subseteq \)\subseteq
\(\scriptsize \supseteq \)\supseteq

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幾何学

表示される数式Latex
\(\scriptsize \angle \)\angle
\(\scriptsize 30^\circ \)30^\circ
\(\scriptsize \perp \)\perp
\(\scriptsize \parallel \)\parallel
\(\scriptsize\triangle {ABC} \equiv \triangle {DEF}\)\triangle {ABC} \equiv \triangle {DEF}
\(\scriptsize \overline{AB}\)\overline{AB}

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その他演算式・微分・積分など

表示される数式Latex
\(\scriptsize \frac{a}{b}\)\frac{a}{b}
\(\scriptsize \mid a \mid \)\mid a \mid
\(\scriptsize{x}^{2}\){x}^{2}
\(\scriptsize{x}_{1}\){x}_{1}
\(\scriptsize\sqrt{x}\)\sqrt{x}
\(\scriptsize\sqrt[y]{x}\)\sqrt[y]{x}
\(\scriptsize _{n}C_{r} \)_{n}C_{r}
\(\scriptsize \lim_{x \to 0}\)\lim_{x \to 0}
\(\scriptsize \sum _{k=1} ^{n} {k(k+1)} \)\sum _{k=1} ^{n} {k(k+1)}
\(\scriptsize \frac{ \mathrm{d} y}{ \mathrm{d} x}\)\frac{ \mathrm{d} y}{ \mathrm{d} x}
\(\scriptsize \frac{\Delta y}{\Delta x}\)\frac{\Delta y}{\Delta x}
\(\scriptsize \frac{\partial y}{\partial x}\)\frac{\partial y}{\partial x}
\(\scriptsize \frac{\partial^2}{\partial x}\)\frac{\partial^2}{\partial x}
\(\scriptsize \nabla\)\nabla
\(\scriptsize \int^{a}_{b} \)\int^{a}_{b}
\(\scriptsize \oint^{a}_{b}\)\oint^{a}_{b}
\(\scriptsize \iint^{a}_{b}\)\iint^{a}_{b}

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修飾文字

表示される数式Latex
\( \bar{x} \)\bar{x}
\( \hat{x} \)\hat{x}
\( \dot{x} \)\dot{x}
\( \ddot{x} \)\ddot{x}
\( \check{x} \)\check{x}
\( \tilde{x} \)\tilde{x}
\( \vec{x} \)\vec{x}
\( \overset{\scriptscriptstyle \leftharpoonup}{x} \)\overset{\scriptscriptstyle \leftharpoonup}{x}
\( \overset{\scriptscriptstyle \leftrightarrow}{x} \)\overset{\scriptscriptstyle \leftrightarrow}{x}
\( \rlap{/}{x} \)\rlap{/}{x}
\( x^\prime \)x^\prime または x'

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ギリシャ文字

表示Latex表示Latex表示Latex
\(\scriptsize \alpha \)\alpha
\(\scriptsize \beta \)\beta
\(\scriptsize \gamma \)\gamma \(\scriptsize \Gamma \)\Gamma
\(\scriptsize \delta \)\delta \(\scriptsize \Delta \)\Delta
\(\scriptsize \epsilon \)\epsilon \(\scriptsize \varepsilon \)\varepsilon
\(\scriptsize \zeta \)\zeta
\(\scriptsize \eta \)\eta
\(\scriptsize \theta \)\theta \(\scriptsize \vartheta \)\vartheta \(\scriptsize \Theta \)\Theta
\(\scriptsize \iota \)\iota
\(\scriptsize \kappa \)\kappa
\(\scriptsize \lambda \)\lambda \(\scriptsize \Lambda \)\Lambda
\(\scriptsize \mu \)\mu
\(\scriptsize \nu \)\nu
\(\scriptsize \xi \)\xi \(\scriptsize \Xi \)\Xi
\(\scriptsize \pi \)\pi \(\scriptsize \Pi \)\Pi
\(\scriptsize \sigma \)\sigma \(\scriptsize \Sigma \)\Sigma
\(\scriptsize \tau \)\tau
\(\scriptsize \upsilon \)\upsilon \(\scriptsize \Upsilon \)\Upsilon
\(\scriptsize \phi \)\phi \(\scriptsize \varphi \)\varphi \(\scriptsize \Phi \)\Phi
\(\scriptsize \chi \)\chi
\(\scriptsize \psi \)\psi \(\scriptsize \Psi \)\Psi
\(\scriptsize \omega \)\omega \(\scriptsize \Omega \)\Omega

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